The problem with some of the cheaper lidar systems is that they might throw a "jammed" notification on to the laser gun, in that case you most certainly will be pulled over by the cop and our car investigated. ALP has the best and fastest database update.
I do not see how you can overpay on a system that has proven to be top of the market. It saves me a dozen times and never been pulled over!! Trust me cops in The Netherlands - certainly motorcops with laserguns - are not dumb! So.. want cheap? Get it, but do not cry when you get 1000 Euro fine for it and you could have gotten ALP in the first place. Go cheap = Get caught.
PS speeding ticket in The Netherlands are 10 km speeding = 100 Euro , so it goes rapidly.